Paper-feed mechanism.



P. J. MEAHL.

PAPER FEED MECHANISM.

APE'LIUATION FILED SEPT. 23, 1909.

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PAPER FEED MBGHANISM.

APPLIGATIQN FILED 321122.23, 1909.

Patented Sept. 6, 1910.

2 SHEETS-SHEET 2.

rastrear carica.

PHILP JACOB Mii-AHL, QF BAYONNE, NEW JERSEY.

PER-FEED IECHANISM.

Specification of Letters latent.

Eatented Sept. 6, 1910.

Application filed September 23, 1909. Serial No. 519,121.

which is simple in construction, reliable in action, feeds the paper positively and uniformly and holds the several superimposed layers of paper irmly and securely while they are being perforated by the perorating machine.

In the accompanying `drawings in which like letters of reference indicate like parts in all the figures: Figure 1 is a. plan View oi' my improved paper feed mechanism, parts being broken away. vertical longitudinal sectional view of the same. Fig. 3 vis an enlarged detail plan view ot parts; partly in act-ion. Fig. t is a vertical sectional view through the parts shown in Fig. 1. Fig. 5 is a vertical transverse sectional view through the paper feed mechanism. Fig. 6 is a detail plan view of the clamping jaw.

In the ends of two parallel horizontal frame bars 1 united by cross bars 26 two parallel shafts 2 and 3 are mounted to rotate and each carries at each end a sprocket wheel 4, and over .each two sprockets at each side of the frame formed by the bars 1 an endless sprocket chain 5 is passed, said chains being connected at regular intervals by cross bars 6. In each end of each bar 6 a bolt or pin` 7 is mounted to turn axially and to be movable in the direction from the top to the bottom of the bar and reversely. lThe lower or inner end of cach pin 7 is slightly rounded and above such rounded end an angle arm or L- shaped arm 14 is secured on the pin and be tween said arm and a suitable washer on the inner side of the bar 6 a. helical spring 8 surrounds the pin and serves to draw the same Fig. 2 is aV l lengthwise inward. On the outer end of each pin 7 a paper clamping jaw 9 i's secured which has an arm or extension 10 beyond the pin and from the under side of this arm or extension a locking pin 11 projects which can pass into holes 12 or 13 in the upper surface oi' the bar 6 according `to the position of the jaw.

A cam track 15 is formed on the extension end edge of each side bar at that end of the machine 'first reached by the paper, that is a series oit superimposed layers of paper represented by 16 in the drawings, and on the upper surface of each side bar 1 and at the upper end of said cam track an upright or beveled or tapering cam projection 24 is formed along the inner edge of the bar l. At the opposite end of each bar l a like cam projection 17 is formed on the upper surface of the bar along the outer edge of the bar and at said projection a flat plate 18 is secured on the topoii each bar 1 and provided at its inner end with a beveled cam' 'face 19.

Side plates 20 covering the top parts of the sprocket chains 5 are supported by arms' and 4. As the pins 7 with the lower rounded ends ride upon the cam tracks 15 the pins are raised and as one end of the angle arm 14 on the pin encounters the cam projection 24 the pin is given axially a quarter turn and the clam ing jaw 9 on said pin, which has been li ted above the plane of the uppermost layer of paper by the cam track is turned 90 and extends inwardly atright angles to the edge of the paper and over the edge part of the paper and when the lower end of the pin has reached the inner end of the horizontal part of the cam track 15 and slides ofi", the expanding spring 8 forces the clamping jaw downward suddenly and tirmly upon the paper which is now firmly and securely gripped between the and the upper surface of the bar 6 and the jaw is locked in position by the locling pin 11 which has entered the hole i3.

and

Aduring the time the bar travels from the shaft 3 to the shaft 2. Shortly before the pins 7 arrive above the shaft 2 their lower ends ride upon the bevel 19 of the plate 18 and are raised and thereby the clamping jaws 9 are lifted olf the paper 16 and immediately thereafter their angle arms 14 encounter1 the cam projections 17 whereby the pins 7 are given a quarter turn and the clamping jaws 9 are swung outward 90Q and beyond the edge of the paper and parallel therewith. The parts remain in these positions until the pins 7 slide off the outer ends of the flat plates 18. rlhe springs 8 expand and pull the jaws 9 upon the upper surfaces of theV bars 6 and the jaws are locked in place by the pins 11 entering the holes 12 in the outer faces of the bars. The jaws remain in these positions until the pins 7 again arrive at the cam tracks 15 and so on. The jaws or" three cross bars 6 grip the paper at the same time and the jaws are not applied upon the paper until they have arrived above the upper surface of the paper so that there is no liability of the turning or swinging jaws mutilating the surface or edge parts of the paper.

AHaving described my invention what I claim as new and desire to secure by Lctters Patent is:

1. In a paper feed mechanism, the combination with endless chains, mechanism for moving them and cross barsuniting them, of clamping jaws mounted on the bars and means for alternately liftin r the jaws in the direction from the bars an lowering them in the direction toward the bars and means for turning the jaws when raised, substantially as set forth.

2. In a paper feed mechanism, the combination with endless chains, mechanism for moving them and cross bars uniting them, of clamping jaws mounted on the bars and means for alternately lifting the jaws in the direction from the bars and lowering Athem in the direction toward the bars and means for turning the jaws when raised, alternately in the direction of the length of the bars and at right angles thereto, substantially as set forth.

3. In a paper feed mechanism, the combination with endless chains, mechanism for moving them and cross bars uniting them, of clampinf jaws mounted on the bars and means or alternately lifting the jaws in the direct-ion from the bars and lowering them in the direction toward the bars and means for turninr the jaws when raised, alternately in the direction of the length of the bars and at right angles thereto, and

@eases means for temporarily locking the jaws in position after each adjustment, substantially as set forth.

4. In a paper feed mechanism, the combination With'endless chains, mechanism for moving them and cross bars uniting them, of clamping jaws mounted on the bars and means for alternately lifting the jaws inthe direction from the bars and lowering them in the direction toward the bars and means for turning the jaws when raised, alternately in the direction of the length of the bars and at right angles thereto and springs acting on the jawsto press them toward the outer.

surface of the bars, substantially as set forth.

5. In a paper feed mechanism, the combination with sprocket wheels and endless chains, of` cross bars uniting the chains, clamping jaws on the bars, mechanism for lifting the jaws when the chains ride upon the one set of sprocket wheels and means for lifting the jaws and turninCr them outward when the chains pass off tie other set of sprocket wheels, substantially as set forth.

6. n a paper feed mechanism the combination with endless chains, of mechanism for moving them and cross bars uniting them, of clamping jaws mounted on the bars, frame bars between the sprocket wheels and cams on said frame bars for raisino' and turning the clamping jaws, substantizly as set forth.

7. ln a paper feed mechanism, the combination with sprocket wheels, of endless chains passed over them, bars uniting the chains, a pin mounted on the end of each ba'r to turn and to move through the bar, a clamping aw on the outer end of which pin, an L shaped arm on the end of each pin, springs on the pins for pressing the jaws upon the outer surfaces of the bars, a' fixed frame and cams on said, frame for lifting and turning the pins,'substantially as set forth.

8. In a paper feed mechanism, the combi-y nation with sprocket wheels, of endless chains passed over them, bars uniting the chains, a pin mounted on the end of each bar to turn and to move through the bar, a clamping jaw on the outer end of each pin, an L shaped arm on the cnd of each pin, springs on the pins` for )ressing the jaws upon the outer surfaces of the bars, a fixed frame and cams on said frame for lifting and turning the pins, locking pins projecting from the underside of the jaws, the bars being provided in their outer surfaces with two holes into which said locking pins can enter, substantially as set fort:

t). In a paper feed mechanism, the combination with endless chains, mechanism for moving them and cross bars uniting them, of clamping jaws mounted on the hars und means for alternately lifting the jaws in the direction from the bars and lowering them Signed at New York in the county of in the direotiontoward the bars, and means New York and State of New York this 2l for turning the jaws when raised, looking day of Sept. A. D. 1909.

pins projecting from the underside of the PHILIP JACOB MEAHL. 5 jaws, the bars being provided in their o`uter Witnesses:

surfaces with two' holes into which' said l0ck- FRANK E. RAFFMAN,

ing pins can enter, substantially as set forth. OSCAR F. GUNz. 

